Ball valve



FIG. 1 is a perspective view of a ball valve when seen from the top and right side of the front, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is a centrally longitudinally cross sectioned front view thereof;

FIG. 9 is a centrally longitudinally cross sectioned side view thereof; and,

FIG. 10 is a cross section taken across FIG. 2 along line X—X. 

The ornamental design for a ball valve, as shown and described. 